Question 49 (Case Based Question) - CBSE Class 12 Sample Paper for 2022 Boards (MCQ Based - for Term 1) - Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Last updated at August 10, 2026 by Teachoo

The fuel cost for the train to travel 500 km at the most economical speed is:

(a) ₹ 3750 (b) ₹ 750 (c) ₹ 7500 (d) ₹ 75000

Ques 49 (Case Based) - The fuel cost for the train to travel 500km at - CBSE Class 12 Sample Paper for 2022 Boards (MCQ Based - for Term 1)

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Transcript

Question 49 The fuel cost for the train to travel 500 km at the most economical speed is: (a) ₹ 3750 (b) ₹ 750 (c) ₹ 7500 (d) ₹ 75000 Now, in our Cost function C(𝒗) C(𝒗) = 𝟑𝟕𝟓/𝟒 𝒗 + 𝟔𝟎𝟎𝟎𝟎𝟎/𝒗 Thus, Fuel Cost = 375/4 𝑣 = 375/4 × 80 = Rs 7500 So, the correct answer is (c)

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